Wall form



P. H. HERSHEY.

Feb. 6, 1923.

WALL FORM, ORIGINAL FILED JUNE 24,1921.

2 SHEETS-SHEET l.

nun 1401 1% Hens/66y.

Fkea, 1923.

' 1,444,377. P. H. HERSHEY.

WALL FORM.

ORIGINAL FILED JUNE 24,1921. 2'SHEETS-SHEET Z.

Wlf/msses 1-- Patented Feb. 65, i923,

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PETER, H. HERSHEY, OF DAUPHIN, PENNSYLVANIA.

WALL FORTE.

Application filed June 24, 1921, Serial No. 480,086. Renewed December22, 1922.

To all whom it may concern:

Be it known that 1, PETER H. l-lnRsHnY, a citizen of the United States",residing at Dauphin, in the county of Dauphin and State of Pennsylvania,have invented new and useful Improvements in -Wall Forms, of which thefollowing is a specification.

The object of my present invention is the provision of an improved formfor facilitating the construction of those concrete walls that arecharacterized by inner and outer portions separated by an interveningchamber or dead-air space. v

To the attainment of the foregoing, the invention consists in theimprovement as hereinafter described and definitely claimed.

In the accompanying drawings, forming part of this specification Figure1 is a side elevation of a form constructed in accordance with myinvention.

Figures 2 and 3 are sections taken in the planes indicated by the lines2-2 and 3-3, respectively, of Figure 1.

- Figure 3 is a perspective of a portion of the cap member of the form.

Figure 4 is a longitudinal vertical section on the line 4-4: of Figure2.

Figure 5 is a detail perspective of one of the form locks.

Figure 6 is a plan showing the invention embodied in mitered cornerforms.

Similar numerals designate corresponding parts in Figures 15 to whichreference will first be made.

Among other elements my novel form includes a cap member 1, notched at 2in its edges, and having longitudinal grooves 3 in said edges. The saidform also comprises inner upright plates 4 and 5, and outer uprightplates 6 and 7, in combination with locks, preferably two in number, oneor" which looks is best shown in Figures 3 and 5. Each of the said lockscomprises members 8 and 9, of inverted U-shape, arranged in lappedrelation, and each also comprises a central vertical bar 10 with apointed upper end 11, and toggle links 12 interposed between andpivotally connected to the bar 10 and the inner uprights of the members8 and 9. Connected to and interposed be tween the bars 10 of the twolocks is a longitudinal bar 13, on the center of which is an upright bar14.

It will be readily apparent from the foregoing that with the uprights ofthe members 8 and 9 connected to the plates 4- 7, Figures l8, verticalmovement of the bars 10 of the locks to the positions shown in Figures 3and 5, will be attended by setting or clamping oi' the plates 5 and 7against one concrete or plastic wall portion 20, and setting or clampingoi" the plates 4: and 6 against a similar wall portion 21, said wallportions being scy. arated by an intervening space or chamber 22. itwill also be apparent that on vertical movement of the bars 10 from theposition shown in Figures 3 and the plates :3 and 7 will be moved awayfrom the wall portion 20, and the plates i and 6 will be moved away fromthe wall portion 21; the uprights of the member 8 being connected to theplates 5 and 6, and the uprights or": the member 9 being connected tothe plates 7 and 4. The said uprights of the members 8 and 9 aredisposed in the notches 2 or" the cap member 1, when said cap member 1is arranged as shown in Figure 3, and its grooves 3 0! rather the wallsat the inner sides of the grooves will hold the plates 41- and 5 againstmovement toward ea :h other. lit will also be noted that the points ofthe uprightbars 10 will be accommodated in the apex of the cap member 1which is preferably angular in cross-section.

The cap member 1 is connected, pivotally or otherwise, in permanentmanner at 30 to the upper end of the bar 14 so that by lifting the capmember, the locks may be contracted to release the plates i--7 and bylowering the cap member the locks may be expanded to set or clamp thesaid plates. Sufficient of the plates 47 are employed to go around abuilding, and when properly used the forms made up of said plates enablethe walls to support and brace each other.

As shown in Figure 6 two forms oi the general construction describedwill be employed for a corner 1; the contiguous ends of the said formsbeing mitered as indicated by 40.

For instance when the bars 10 are connected to the cap member 1 at 31,Figures 8 and 4, the bar 13, upright 14 and connec tion 30 may beomitted.

The essential feature of my invention is the simultaneous locking orbinding of the plates against opposite sides of two spaced walls.

1' have entered into a detailed description of the construction andrelative arrangement of parts embraced in the present and ventionvarious changes and modifications may bemade such'as fall Within thescope of my invention as defined in my appended blaims. i Having;described my invention, What I claim and 1. A building form comprisinginner "plates and outer plates, locks each having inverted U-shapedmembers connected to said plates and also'having an upright bar'andtoggle'linksbetween said bar and memv1 bers,v and a cap memberconnected \v1th said looks.

2A building form comprising inner jplates and'outer plates, looks eachhaving inverted 'U-shaped members connected to said plates and alsohaving an upright bar andtoggle links' betvveen said bar andmembers andacap member connected With said plates and outer plates,.and1a lookhaving inverted U-shaped transverse and lapped members connectedto saidplatesand also havlng an upright bar-land toggle links between saiduprlght bar and the inner por- D tions ofthe U-shaped members. desire tosecureby Letters-Pat i. A building form comprising inner platesand outerplates, and a lock having inverted Ll-shaped transverse and lappedmembers connected to said plates and also having anupright bar andtoggle links between said upright bar and the innerportions ot'theU-shaped members, in combination with a cap member to interloclrvvithtWo of the said plates and a connection between said'cap member and theupright bar.

In testimony whereof, I afiix my signature.

PETER H. HER-snarl

